CN107209005B - Contact line wears measurement device and contact line wears measuring method - Google Patents
Contact line wears measurement device and contact line wears measuring method Download PDFInfo
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- CN107209005B CN107209005B CN201680007636.6A CN201680007636A CN107209005B CN 107209005 B CN107209005 B CN 107209005B CN 201680007636 A CN201680007636 A CN 201680007636A CN 107209005 B CN107209005 B CN 107209005B
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- contact line
- wear
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- abrasion
- actual coordinate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
- G01B11/10—Measuring arrangements characterised by the use of optical techniques for measuring diameters of objects while moving
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/28—Manufacturing or repairing trolley lines
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
A kind of contact line abrasion measurement device and its method, with the lower surface for the contact line (5) that line sensor camera (2) shooting being arranged on electric car roof is contacted with pantograph, image procossing is carried out to the image of the lower surface of the contact line (5) of shooting and finds out the residual diameter of contact line (5), calculate sectional area with the uneven wear contact line (5 of horizontal wear (5a) and skewed wear portion (5b)AB) sectional area is identical, the only horizontal abrasion contact line (5 with horizontal wear (5a)A) residual diameter, the residual diameter as uneven wear contact line is quite worth (H).
Description
Technical field
From carrying out the present invention relates to the width of the lower surface by the roof photographs contact line from electric car and to the image
It manages to measure the overhead line detection field of the abrasion of contact line, is in particular to tilted for the pantograph sliding surface part of contact line
Uneven wear part find out residual diameter be quite worth contact line abrasion measurement device and contact line abrasion measuring method, institute
Stating residual diameter quite value becomes the index for knowing the service life of contact line.
Background technique
The schematic diagram in the section of contact line is shown in FIG. 8.There is no the contact line of abrasion shown in (a) relative to Fig. 8
5, contact line 5 due to being contacted with pantograph (not shown), so, the lower surface of contact line 5 and horizontal plane as shown in (b) of Fig. 8
It wears in parallel, or the lower surface of contact line 5 as shown in (c) of Fig. 8 is worn with being inclined relative to horizontal.Hereinafter, will be with water
The wear that plane is worn in parallel is known as horizontal wear 5a, and the wear by being inclined relative to horizontal worn is known as inclining
Oblique wear 5b.
In addition, the overlapping part in contact line 5 or the position for overlap joint line entrance, as shown in (d) of Fig. 8, also sometimes
The abrasion shape for being referred to as uneven wear that wear as contact line 5 is made of horizontal wear 5a and skewed wear portion 5b
State.
For the abrasion of such contact line 5, in following patent documents 1, describes shown in (b) of measurement chart 8 and have
There is the contact line measuring method of the abrasion loss of the contact line 5 of horizontal wear 5a.In addition, being described in following patent documents 2
The contact line measuring method of the abrasion loss of contact line 5 shown in (c) of measurement chart 8 with skewed wear portion 5b.
In addition, being directed to the uneven wear of contact line 5 shown in (d) of Fig. 8, disclosing in following patent documents 3 makes
Uneven wear measurement is carried out with laser.In the patent document 3, using laser reflected light intensity difference by horizontal wear
5a and skewed wear portion 5b binaryzation, using their width and pre-prepd residual diameter table, as shown in figure 9, calculating water
The residual diameter H of flat wear 5aAWith the residual diameter H of skewed wear portion 5bB。
Citation
Patent document
Patent document 1: No. 4635657 bulletins of Japanese Patent No.
Patent document 2: No. 5534058 bulletins of Japanese Patent No.
Patent document 3: No. 5380000 bulletins of Japanese Patent No.
Non-patent literature
Non-patent literature 1: writing group and write jointly, " iron road operator め electricity mood outline trolley line シ リ ー ズ
2 contact lines (writing to serial 2 contact lines of electrical outline trolley line of railway technology personnel) ", the electrical skill of (company) Japanese railway
Broadcasting Technology Association publishes, Heisei on November 10th, 10,4-5,32-33 page
Summary of the invention
Subject to be solved by the invention
Here, as documented by above-mentioned non-patent literature 1, when the tensile strength of contact line 5 reduces, it is possible to meeting
Cause to break.It should be with the tensile strength of contact line 5 is related to the residual sectional area of contact line 5 and passes through contact line survey
Also mode relevant to residual sectional area is set fixed and calculating residual diameter.That is, as indicating that there is horizontal wear
The index of the state of wear of the uneven wear contact line of 5a and skewed wear portion 5b, it is believed that without the residual of horizontal wear 5a
The two residual diameters of the residual diameter of diameter and skewed wear portion 5b are stayed to indicate, but to a value based on sectional area
(hereinafter referred to as residual diameter is quite worth) indicates to be appropriate.
However, there are the following problems in above-mentioned previous contact line measuring method: although horizontal wear can be directed to
5a, skewed wear portion 5b find out residual diameter value respectively, but especially for the contact line 5 for being in uneven wear state,
It can not be found out based on residual sectional area in view of a residual diameter of horizontal wear 5a and skewed wear portion 5b is quite worth,
So being difficult to correctly grasp the tensile strength of contact line 5.
Accordingly, the purpose of the present invention is to provide one kind to be calculated based on residual section in view of level
The contact line abrasion measurement device and contact line abrasion measurement side that one residual diameter in wear and skewed wear portion is quite worth
Method.
Solution for solving the problem
For solving the contact line abrasion measuring method mill being arranged on electric car roof of the first invention of the above subject
Damage measurement shoots the lower surface of the contact line contacted with pantograph with camera, to the image of the lower surface of the contact line of shooting
It carrying out image procossing and finds out the residual diameter of the contact line, the contact line abrasion measuring method is characterized in that,
It is identical as the sectional area of uneven wear contact line with horizontal wear and skewed wear portion to calculate sectional area
, the residual diameter of the only horizontal abrasion contact line with horizontal wear, the residual as the uneven wear contact line
Diameter is quite worth.
In addition, the contact line abrasion measuring method of the second invention is characterized in that, comprising:
The step of calculating the actual coordinate of the central point of the contact line according to the image of the lower surface of the contact line；
According to the image of the lower surface of the contact line, the actual coordinate, described of the end of the horizontal wear is calculated
The actual coordinate of the end of the actual coordinate and skewed wear portion of the boundary point in horizontal wear and the skewed wear portion
The step of；
The actual coordinate of central point based on the contact line, the horizontal wear end actual coordinate, described
The actual coordinate of the end of the actual coordinate and skewed wear portion of the boundary point in horizontal wear and the skewed wear portion,
The step of calculating the sectional area of the uneven wear contact line；And
Section based on the uneven wear contact line calculates the step of residual diameter is quite worth.
In addition, the contact line abrasion measurement device of third invention is arranged on electric car roof to the electric car contacted with pantograph
The abrasion measurement camera that the lower surface of line is shot, the contact line abrasion measurement device has image processing part, described
Image processing part image procossing carried out to the image of the lower surface of the contact line shot by the abrasion measurement with camera and
The residual diameter of the contact line is found out, the contact line abrasion measurement device is characterized in that,
Described image processing unit has residual diameter and is quite worth calculation processing unit, and the residual diameter is quite worth calculation processing
Portion's calculating sectional area is identical with the sectional area of uneven wear contact line with horizontal wear and skewed wear portion, only has
There is the residual diameter of the horizontal abrasion contact line of horizontal wear, the residual diameter as the uneven wear contact line is suitable
Value.
In addition, the contact line abrasion measurement device of the 4th invention is characterized in that,
Described image processing unit has:
Contact line center position calculation processing unit, the contact line center position calculation processing unit is according to the electric car
The image of the lower surface of line calculates the actual coordinate of the central point of the contact line；
Boundary point position calculation processing unit, boundary point position calculation processing unit is according to the lower surface of the contact line
Image at least calculates actual coordinate, the horizontal wear and the skewed wear portion of the end of the horizontal wear
The actual coordinate of the end in the actual coordinate of boundary point and the skewed wear portion；And
Sectional area calculation processing unit is worn, the abrasion sectional area calculation processing unit is based on by contact line center point
It sets the actual coordinate of the central point of the contact line of calculation processing unit calculating and is calculated by boundary point position calculation processing unit
The reality of the actual coordinate of the end of the horizontal wear out, the horizontal wear and the boundary point in the skewed wear portion
The actual coordinate of the end in border coordinate and the skewed wear portion, calculates the sectional area of the uneven wear contact line,
The residual diameter is quite worth calculation processing unit based on as described in abrasion sectional area calculation processing unit calculating
The sectional area of uneven wear contact line calculates the residual diameter and is quite worth.
The effect of invention
Contact line abrasion measurement device according to the present invention and contact line wear measuring method, even having by horizontal mill
The uneven wear contact line for the wear that damage portion and skewed wear portion are constituted, can also calculate in view of remaining the residual of sectional area
It stays diameter quite value and correctly grasps the tensile strength of uneven wear contact line.
Detailed description of the invention
Fig. 1 is the explanatory diagram for indicating the contact line abrasion measurement device of the embodiment of the present invention.
Fig. 2 is the composition figure of the contact line abrasion measurement device of the embodiment of the present invention.
Fig. 3 is the processing stream for indicating to be carried out by the image processing part of the contact line abrasion measurement device of the embodiment of the present invention
The flow chart of journey.
Fig. 4 is the explanatory diagram for indicating an example of line sensor image.
Fig. 5 is the explanatory diagram for indicating contact line, image center point and sensor relation of plane.
Fig. 6 is the explanatory diagram for the calculation method for illustrating the sectional area of contact line.
Fig. 7 is the explanatory diagram for illustrating to remain the calculation method that diameter is quite worth.
Fig. 8 is the schematic diagram for indicating the section of contact line, and (a) of Fig. 8 indicates the state that contact line is not worn, Fig. 8's
(b) indicate that contact line has the state of horizontal wear, (c) of Fig. 8 indicates that contact line has the state in skewed wear portion, Fig. 8
(d) indicate contact line have horizontal wear and skewed wear portion state.
Fig. 9 is the explanatory diagram for indicating the residual diameter calculation example of previous uneven wear contact line.
Specific embodiment
Hereinafter, the contact line that the present invention will be described in detail wears measurement device referring to attached drawing.
Embodiment
Using Fig. 1 to Fig. 7, illustrate an embodiment of contact line abrasion measurement device of the invention.
As shown in Figure 1, in the present embodiment, on the roof for checking vehicle (electric car) 1, as image input mechanism and
It is provided with line sensor camera (the abrasion measurement shot to the lower surface of the contact line 5 contacted with pantograph (not shown)
With camera) 2.In addition, being provided with image processing apparatus (image processing part) 3 and recording device 4 in the car for checking vehicle 1.
Line sensor camera 2 checks the sleeper of vertical top and its scanning line direction as track 6 of vehicle 1 to shoot
In other words direction with the mode in the orthogonal direction of the direction of travel of vehicle 1 is checked sets its direction.Line sensor camera 2 as a result,
Scan line cross contact line 5.The picture signal of the lower surface of the contact line 5 shot by the line sensor camera 2 is input into
Image processing apparatus 3.
As shown in Fig. 2, image processing apparatus 3 is by line sensor image generating unit 3a, contact line center position calculating
Reason portion 3b, boundary point position calculation processing unit 3c, abrasion sectional area calculation processing unit 3d, residual diameter are quite worth calculation processing unit
3e and as storing mechanism memory M1, M2 constitute.
Image processing apparatus 3 carries out the picture signal inputted from line sensor camera 2 according to flow chart shown in Fig. 3
Image procossing calculates the residual diameter quite value H of contact line wear (referring to Fig. 7).
That is, in image processing apparatus 3, firstly, the picture signal inputted from line sensor camera 2 is by line sensor image
Generating unit 3a is arranged in temporal sequence, and is saved in memory M1 (step S1) as line sensor image I (referring to Fig. 4).
Here, in the present embodiment, the left end p1 of the contact line on line sensor image I shown in Fig. 4, horizontal wear
(inclination is ground for left end (horizontal wear end) p2, horizontal wear and the boundary point p3 in skewed wear portion, skewed wear portion right end
Damage portion end) p4, the right end p5 of contact line be (corresponding with point P1, P2, P3, P4, P5 shown in fig. 6.Hereinafter, by the p1~p5
Referred to as " boundary point p1~p5 ") location of pixels set automatically and carrying out image procossing to line sensor image I by system
It is fixed, or carry out the imparting such as setting on GUI by user.In addition, presetting camera parameter (focal length, sensor element number
And sensor width).
And then step S1, the location of pixels of boundary point p1, p5 based on line sensor image I setting are via memory
M2 is sent collectively to contact line center position calculation processing unit 3b with camera parameter, is calculated using contact line center position
Processing unit 3b calculates the actual coordinate P0 (x of the central point of contact line 50, y0) (step S2).
Be illustrated in detail below, firstly, by the location of pixels px1 of boundary point p1, p5 on line sensor image I,
Px5 [pix] is converted to sensor cover coordinate u1, u5 [mm] shown in fig. 5.In the following description, for simplicity, it shows
There is no calculating formula when lens distortion (lens distortion).
Here, when the sensor width of each element is Δ u, using the left end of sensor cover 2a as origin, pixel position
It sets px1, px5 [pix] and is converted to sensor cover coordinate u1', u5'[mm using following formula (1)].Also, when with sensor cover 2a's
When center is origin and the width of sensor cover is set as U, coordinate u1, u5 [mm] on sensor cover are converted to following formula (2).Its
In, in following formula (1), (2), location of pixels px1, px5 are expressed as px, sensor cover coordinate u1', u5' are expressed as u', it will
Sensor cover coordinate u1, u5 are expressed as u.
U'=Δ u × px ... (1)
U=u'-U/2 ... (2)
In addition, at this point, the result of higher precision can be obtained by considering the distortion of lens and being converted.
Sensor is found out according to location of pixels px1, px5 of boundary point p1, p5 on line sensor image I as described above
After areal coordinate u1, u5, as shown in figure 5, finding out through the straight line L1 of sensor cover coordinate u1 and image center point C, passing through sensing
The formula of the straight line L5 of device areal coordinate u5 and image center point C.Wherein, at this point, coordinate origin is set as image center point C.
Using focal length f, the formula of straight line L1, L5 are found out with following formula (3).In addition, the slope a of straight line L1, L51、a5For a1
=f/u1、a5=f/u5, the angle, θ of straight line L1, L5 (direction x) relative to horizontal direction1、θ5It is found out with following formula (4).Wherein, In
In following formula (3), (4), straight line L1, L5 are expressed as L, sensor cover coordinate u1, u5 are expressed as u, by the oblique of straight line L1, L5
Rate a1、a5It is expressed as a, the angle, θ by straight line L1, L5 relative to the direction x1、θ5It is expressed as θ.
Y=ax=(f/u) x ... (3)
θ=arcTan (f/u) ... (4)
Use the formula of straight line L1, L5 for finding out as described above, the slope a of straight line L1, L51、a5And straight line L1, L5 are opposite
Angle, θ in the direction x1、θ5, find out the actual coordinate (x of the central point P0 of contact line 50, y0)。
That is, as shown in figure 5, when considering the straight line L0 by the central point P0 and image center point C of contact line 5, due to
Angle, θ of the straight line L0 relative to the direction x0=(θ1+θ5)/2, so finding out the formula of straight line L0 with following formula (5).
Y=a0X=tan (θ0)x…(5)
Also, the central point P0 (x of the contact line 5 due to being located on straight line L00, y0) arrive straight line L1 distance and electric car
The radius r [mm] of line is equal, so the x coordinate x of the central point P0 of contact line 5oIt is found out using following formula (6).In addition, according to y0=
a0x0, also find out y0.In addition, finding out formula (6) using " formula with straight line distance d is put " shown in following formula (7).
[mathematical expression 1]
Wherein, (7) intercept b=0 ...
Actual coordinate P0 (the x of the central point of contact line 5 is found out as above0, y0)。
And then step S2, as shown in Fig. 2, the location of pixels and camera of boundary point p1~p5 on line sensor image I
Parameter is sent via memory M2 to boundary point position calculation processing unit 3c together.As shown in figure 3, being counted using boundary point position
Calculate the actual coordinate P1 (x that processing unit 3c finds out boundary point p1, p2, p3, p4, p51, y1)、P2(x2, y2)、P3(x3, y3)、P4
(x4, y4)、P5(x5, y5) (step S3).
Firstly, finding out actual coordinate P1, P5 of boundary point p1, p5.It is contact line 5 and straight line that actual coordinate P1, P5, which are utilized,
Condition as the contact point of L1, L5 is found out.That is, passing through the central point P0 (x of contact line 50, y0) straight line L1 vertical line y=
(- 1/a1)x+(1/a1) x0+y0With straight line L1 (y=a1X) intersection point is P1, passes through the central point P0 (x of contact line 50, y0)
Straight line L5 vertical line y=(- 1/a5)x+(1/a5)x0+y0With straight line L5 (y=a5X) intersection point is P5.Actual coordinate P1, P5
X coordinate, y-coordinate finds out with following formula (8), (9) respectively.
[mathematical expression 2]
In addition, in order to carry out the calculating of actual coordinate P2, P3, P4 of boundary point p2, p3, p4, firstly, finding out boundary point
Actual coordinate P2, P4 of p2, p4.Formula (the y=a of straight line L2, L42X, y=a4X) it is found out in the same manner as L1, L5.It can from Fig. 6
Know, be the point on the circumference of contact line 5 due to boundary point p2, p4, so actual coordinate P2, P4 of boundary point p2, p4 can make
For shown in following formula (10) with the central point P0 (x of contact line 50, y0) centered on radius r circle and straight line L2, L4 intersection point
And it finds out.Wherein, in following formula (10), by x coordinate, that is, x of actual coordinate P2, P42、x4It is recorded as x together, by straight line L2, L4
Slope a2、a4It is recorded as a together.
[mathematical expression 3]
Y-coordinate, that is, y of actual coordinate P2, P42、y4According to y2=a2x2、y4=a4x4It finds out.
Actual coordinate P2 (x is obtained as above2, y2)、P4(x4, y4)。
Then, consider the actual coordinate P3 (x of boundary point p33, y3).Pass through the straight line of the central point P0 and P3 of contact line 5
The formula y=a of L33X is found out in the same manner as straight line L2, L4.Here, y-coordinate, that is, y of the actual coordinate P3 of boundary point p33It can lead to
Cross judge between P2-P3 and between P3-P4 which side for horizontal wear 5a, which side be skewed wear portion 5b and
It finds out.As shown in fig. 6, as the skewed wear portion 5b being further shaved there are horizontal wear 5a and in contrast, it is practical
The y-coordinate y of coordinate P33The y-coordinate y of P2, P4 can be passed through2、y4Value judged.That is, actual coordinate P2, P4
In y value a lesser side and P3 y-coordinate y3Unanimously.When it is write with conditional, become following formula (11).
[mathematical expression 4]
In addition, according to x3=y3/a3, also find out x3。
Actual coordinate P3 (the x of boundary point p3 is obtained as above3, y3)。
Then, as shown in Fig. 2, when sending contact line center to abrasion sectional area calculation processing unit 3d via memory M2
Actual coordinate P0 and boundary point p2, p3, p4 actual coordinate P2, P3, P4 when, as shown in figure 3, abrasion sectional area calculating at
Reason portion 3d carries out the calculating (step S4) of abrasion sectional area.
Hereinafter, specifically describing the processing for calculating abrasion sectional area.
Firstly, the calculation processing of the abrasion sectional area of explanation ideally.For example, it is contemplated that following situation: such as Fig. 6 institute
Show, the vertex on the direction x of the contact line 5 of radius r [mm] be set as P6, P7, between P6-P2, between P2-P3, P3-P4
Between, the distance d on the direction x between P4-P71、d2、d3、d4(d known to [mm]1+d2+d3+d4=2r).
In this case, abrasion sectional area S can be found out in the following manner.
That is, using the area S of sector P6P0P2, P4P0P71、S2With the area S of triangle P0P2P4, P2P3P43、S4,
It is found out using following formula (12) and parameter d has been provided1、d2、d3、 d4When abrasion sectional area S.
[mathematical expression 5]
Here, working as θ11(=∠ P2P0P6), θ12(=∠ P4P0P7), h1、h2、h4It is set to following formula (13), (14)
When, abrasion sectional area S is indicated with following formula (15).
[mathematical expression 6]
h1=r sin θ11, h2=r sin θ12, h4=r (sin θ11-sinθ12)…(14)
It is above-mentioned ideally, vertex P6, P7 be contact line both ends, the distance between P6-P7 d67For contact line
Diameter value 2r (d67=2r).In contrast, when shooting contact line 5 with line sensor camera 2, on line sensor image I
Boundary point p1, p5 corresponding actual coordinate P1, P5 are different from vertex P6, P7 on the direction x of contact line 5, as shown in Fig. 6, at
To pass through the contact point of the straight line of image center point C and contact line 5.Therefore, the distance between P1-P5 d15Electric car will not be become
Diameter value 2r (the d of line15≠2r)。
Also, as shown in figure 5, also must be considered that following point: the relative position of P1, P5 and contact line center P0 are according to electricity
Fare 5 relative to line sensor camera 2 deviation post and change.Hereinafter, find out contact line of the explanation in view of above-mentioned point
The method that residual diameter is quite worth.
That is, as long as the coordinate and r of known P2, P3, P4, can find out actual abrasion sectional area.Firstly, if finding out
Length d between P2-P424, then triangle P0P2P4 becomes the length (d on three sides24, r, r) known to triangle, so three
The area S of angular P0P2P43It is found out with following formula (16).
[mathematical expression 7]
Wherein,
Here, in above formula (16), a=d24, b=c=r.
In addition, the area S about triangle P2P3P44, also with S3Similarly, with the length d between P2- P323(=
d2), the length d between P3-P434, length d between P2-P424The formula of the area of known triangle is found out.
Then, ∠ P2P0P4 (=θ is found out13).That is, according to fundamental formular, that is, area of triangle=(bottom edge × height)/2,
The high h of triangle P0P2P4 when finding out using P2-P4 as bottom edge is found out using the property of isosceles triangle by following formula (17)
Angle, θ13。
[mathematical expression 8]
As long as using above-mentioned angle, θ13, the area of fan-shaped P2P0P4 can be found out, abrasion sectional area S is (fan-shaped by S=
The area of P2P0P4)-(S3+S4) find out.
Then, as shown in Fig. 2, sending abrasion section when being quite worth calculation processing unit 3e to residual diameter via memory M2
When product, as shown in figure 3, residual diameter quite value calculation processing unit 3e carries out the calculating (step S5) that residual diameter is quite worth.
Illustrate that the residual diameter for the part with horizontal wear 5a and skewed wear portion 5b for finding out contact line 5 is quite worth
The method of H is (hereinafter, be known as uneven wear electricity for the part with horizontal wear 5a and skewed wear portion 5b of contact line 5
Fare 5AB).Firstly, for finding out, the only contact line 5 with horizontal wear 5a is (hereinafter referred to as horizontal to wear contact line 5A)
Abrasion sectional area S formula for, use horizontal abrasion contact line 5ARadius r and Fig. 7 shown in wear angle α, under
Formula (18) is found out.
[mathematical expression 9]
Here, in following formula (19), if uneven wear contact line 5ABAbrasion sectional area SABIt is known that can then incite somebody to action
Wear sectional area SABIt substitutes into the S of following formula (19) and application Newton method calculates wear angle α using following formula (20).
[mathematical expression 10]
By calculating above, as shown in fig. 7, finding out and known uneven wear contact line 5ABAbrasion sectional area SAB
Horizontal abrasion contact line 5 of the same areaAWear angle α.
Using the α found out, residual diameter quite value H is found out with following formula (21).
[mathematical expression 11]
It finds out as above and known uneven wear contact line 5ABAbrasion sectional area SABWater of the same area
Plain grinding damages contact line 5AResidual diameter value, i.e. uneven wear contact line 5ABResidual diameter quite value H.
The residual diameter found out in this way quite value H is recorded in recording device 4.
In addition, contact line abrasion measurement device and contact line abrasion measuring method of the invention is not limited to above-mentioned implementation
Example, can make various changes without departing from the scope of spirit of the present invention certainly.
For example, in the above-described embodiments, show carried out in the calculation processing unit 3c of boundary point position boundary point p1, p2,
Actual coordinate P1 (the x of p3, p4, p51, y1)、P2(x2, y2)、P3(x3, y3)、P4(x4, y4)、P5(x5, y5) calculating example
Son, but at least carry out using boundary point position calculation processing unit 3c the actual coordinate P2 (x of boundary point p2, p3, p42, y2)、P3
(x3, y3)、P4(x4, y4) calculating.
In addition, in the present embodiment described above, the wear surface for showing contact line 5 has a horizontal wear 5a and one
The example of skewed wear portion 5b, but the wear surface of contact line 5 is also possible to other different abrasion shapes.
Measurement device is worn according to the contact line of above-mentioned the present embodiment and contact line wears measuring method, even having water
The uneven wear contact line 5 of flat wear 5a and skewed wear portion 5bAB, also can be based on according to abrasion sectional area SABIt obtains
Residual sectional area, calculate consider horizontal wear 5a and skewed wear portion 5b residual diameter quite value H, so can be just
Really grasp the tensile strength of contact line 5.
In addition, since residual diameter quite value H can be with common horizontal abrasion contact line 5AResidual diameter value it is same
Ground is handled, so also having can be to uneven wear contact line 5ABWith common horizontal abrasion contact line 5ACarry out one
The advantage that memberization manages.Also, unevenness can not only be applied to by finding out the residual diameter quite idea of value H according to sectional area
The situation of even abrasion can also be flexibly applied to the contact line of different abrasion shapes.
Industrial applicibility
Present invention is preferably applicable to following contact line abrasion measurement devices and contact line to wear measuring method: be existed with setting
Abrasion measurement on electric car roof shoots the lower surface of the contact line contacted with pantograph with camera, under the contact line of shooting
The image on surface carries out image procossing and finds out the residual diameter of contact line.
Description of symbols
1 vehicle
2 line sensor cameras
3 image processing apparatus
3a line sensor image generating unit
3b contact line center position calculation processing unit
3c boundary point position calculation processing unit
3d wears sectional area calculation processing unit
3e residual diameter is quite worth calculation processing unit
4 recording devices
5 contact lines
5ALevel abrasion contact line
5ABUneven wear contact line
The horizontal wear of 5a
5b skewed wear portion
6 tracks
M1, M2 memory
Claims (2)
1. a kind of contact line wears measuring method, is shot with the abrasion measurement being arranged on electric car roof with camera and connect with pantograph
The lower surface of the contact line of touching carries out image procossing to the image of the lower surface of the contact line of shooting and finds out the electric car
The residual diameter of line, the contact line wear measuring method and are characterized in that,
It is identical with having the sectional area of uneven wear contact line in horizontal wear and skewed wear portion, only to calculate sectional area
The residual diameter of horizontal abrasion contact line with horizontal wear, the residual diameter phase as the uneven wear contact line
Work as value,
The contact line abrasion measuring method includes
The step of calculating the actual coordinate of the central point of the contact line according to the image of the lower surface of the contact line；
According to the image of the lower surface of the contact line, the actual coordinate of the end of the calculating horizontal wear, the level
The step of the actual coordinate of the end of the actual coordinate and skewed wear portion of the boundary point in wear and the skewed wear portion
Suddenly；
The actual coordinate of central point based on the contact line, the actual coordinate of the end of the horizontal wear, the level
The actual coordinate of the end of the actual coordinate and skewed wear portion of the boundary point in wear and the skewed wear portion, calculates
The step of sectional area of the uneven wear contact line；And
Section based on the uneven wear contact line calculates the step of residual diameter is quite worth.
2. a kind of contact line wears measurement device, be arranged on electric car roof to the lower surface of the contact line contacted with pantograph into
The abrasion measurement camera of row shooting, the contact line abrasion measurement device have image processing part, described image processing unit pair
The image of the lower surface of the contact line shot by the abrasion measurement with camera carries out image procossing and finds out the electric car
The residual diameter of line, the contact line wear measurement device and are characterized in that,
Described image processing unit has residual diameter and is quite worth calculation processing unit, and the residual diameter is quite worth calculation processing unit calculation
Sectional area is identical with the sectional area of uneven wear contact line with horizontal wear and skewed wear portion out, only has water
The residual diameter of the horizontal abrasion contact line of flat wear, the residual diameter as the uneven wear contact line are quite worth,
Described image processing unit has:
Contact line center position calculation processing unit, the contact line center position calculation processing unit is according to the contact line
The image of lower surface calculates the actual coordinate of the central point of the contact line；
Boundary point position calculation processing unit, boundary point position calculation processing unit is according to the figure of the lower surface of the contact line
Picture at least calculates the actual coordinate of the end of the horizontal wear, the side of the horizontal wear and the skewed wear portion
The actual coordinate of the end in the actual coordinate of boundary's point and the skewed wear portion；And
Sectional area calculation processing unit is worn, the abrasion sectional area calculation processing unit is based on by the contact line center position
Calculate the actual coordinate of the central point for the contact line that processing unit calculates and by the calculating of boundary point position calculation processing unit
The practical seat of the actual coordinate of the end of the horizontal wear, the horizontal wear and the boundary point in the skewed wear portion
The actual coordinate of the end in mark and the skewed wear portion, calculates the sectional area of the uneven wear contact line,
The residual diameter is quite worth calculation processing unit based on the unevenness calculated by the abrasion sectional area calculation processing unit
The sectional area of even abrasion contact line, calculates the residual diameter and is quite worth.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015016220A JP6450971B2 (en) | 2015-01-30 | 2015-01-30 | Trolley wire wear measuring device and trolley wire wear measuring method |
| JP2015-016220 | 2015-01-30 | ||
| PCT/JP2016/052232 WO2016121779A1 (en) | 2015-01-30 | 2016-01-27 | Overhead wire wear measurement device and overhead wire wear measurement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107209005A CN107209005A (en) | 2017-09-26 |
| CN107209005B true CN107209005B (en) | 2019-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680007636.6A Active CN107209005B (en) | 2015-01-30 | 2016-01-27 | Contact line wears measurement device and contact line wears measuring method |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP3252428B1 (en) |
| JP (1) | JP6450971B2 (en) |
| CN (1) | CN107209005B (en) |
| MY (1) | MY194956A (en) |
| SG (1) | SG11201705970VA (en) |
| TW (1) | TWI593939B (en) |
| WO (1) | WO2016121779A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6575087B2 (en) * | 2015-03-19 | 2019-09-18 | 株式会社明電舎 | Trolley wire wear measuring device |
| JP6855405B2 (en) * | 2018-03-20 | 2021-04-07 | 公益財団法人鉄道総合技術研究所 | Tram wire measuring method and trolley wire measuring device |
| CN109130955B (en) * | 2018-09-29 | 2021-07-20 | 武汉理工大学 | High-speed railway dropper pre-allocation method for compensating influence of contact line abrasion |
| JP7159790B2 (en) * | 2018-10-29 | 2022-10-25 | 株式会社明電舎 | Catenary wear detector |
| JP6635183B1 (en) * | 2018-12-19 | 2020-01-22 | 株式会社明電舎 | Wear measuring device and wear measuring method |
| JP7348801B2 (en) * | 2019-10-08 | 2023-09-21 | 株式会社プロテリアル | contact wire |
| NL2026149B1 (en) * | 2020-07-28 | 2022-03-29 | Volkerwessels Intellectuele Eigendom B V | Optical measurement system for an overheadline |
| CN112325781B (en) * | 2020-10-16 | 2022-05-17 | 易思维（杭州）科技有限公司 | Rail transit contact line abrasion detection device and method |
| CN116147525B (en) * | 2023-04-17 | 2023-07-04 | 南京理工大学 | Pantograph contour detection method and system based on improved ICP algorithm |
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| JP2009292351A (en) * | 2008-06-06 | 2009-12-17 | Meidensha Corp | Wear measurement apparatus and wear measurement method |
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| JP4635657B2 (en) * | 2005-03-11 | 2011-02-23 | 株式会社明電舎 | Trolley wire wear measuring device by image processing |
| JP5423567B2 (en) * | 2010-04-30 | 2014-02-19 | 株式会社明電舎 | Vehicle position measuring device for electric railway maintenance |
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| JP6347069B2 (en) * | 2014-05-30 | 2018-06-27 | 株式会社明電舎 | Apparatus and method for measuring trolley wire wear by image processing |
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2015
- 2015-01-30 JP JP2015016220A patent/JP6450971B2/en active Active
-
2016
- 2016-01-27 EP EP16743382.0A patent/EP3252428B1/en active Active
- 2016-01-27 MY MYPI2017702773A patent/MY194956A/en unknown
- 2016-01-27 SG SG11201705970VA patent/SG11201705970VA/en unknown
- 2016-01-27 WO PCT/JP2016/052232 patent/WO2016121779A1/en active Application Filing
- 2016-01-27 CN CN201680007636.6A patent/CN107209005B/en active Active
- 2016-01-29 TW TW105102949A patent/TWI593939B/en active
Patent Citations (5)
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| JPS535655A (en) * | 1976-07-05 | 1978-01-19 | Omron Tateisi Electronics Co | Trolley line wear measurement |
| EP0791498A1 (en) * | 1996-02-23 | 1997-08-27 | Riccardo Dallara | An apparatus for checking electrical lines |
| JP2006250776A (en) * | 2005-03-11 | 2006-09-21 | Meidensha Corp | Abrasion state measuring device of trolley line by image processing |
| JP2009274508A (en) * | 2008-05-13 | 2009-11-26 | West Japan Railway Co | Method and system for measuring wear amount of trolley wire |
| JP2009292351A (en) * | 2008-06-06 | 2009-12-17 | Meidensha Corp | Wear measurement apparatus and wear measurement method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6450971B2 (en) | 2019-01-16 |
| WO2016121779A1 (en) | 2016-08-04 |
| TW201632829A (en) | 2016-09-16 |
| EP3252428A1 (en) | 2017-12-06 |
| MY194956A (en) | 2022-12-28 |
| JP2016142540A (en) | 2016-08-08 |
| EP3252428B1 (en) | 2019-09-18 |
| CN107209005A (en) | 2017-09-26 |
| TWI593939B (en) | 2017-08-01 |
| SG11201705970VA (en) | 2017-08-30 |
| EP3252428A4 (en) | 2018-07-04 |
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